S 98 Synthesis of new sorbents on the basis of dibenzocrown ethers chemically attached to magnetic particles Fe@C [Electronic resource] / Yu. A. Titova, O. V. Fedorova, I. G. Ovchinnikova, G. L. Rusinov, V. N. Charushin // Macroheterocycles . - 2014. - Vol.7, №1. - С. 23-27. - Bibliogr. : p. 27 (10 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): DIBENZOCROWN ETHERS -- Fe@C -- IMMOBILIZATION Аннотация: Magnetic particles Fe@C were chemically modified with dibenzo-18-crown-6, dibenzo-21-crown-7 and dibenzo-24- crown-8 through the C-C bond formation using diazonium salts of the corresponding crown ethers. It has been shown that the ability of Fe@C-dibenzocrown ether composites for sorbtion of Yb3+ cations from 0.1 M hydrochloric acid solutions increased from 0 to 90.9-100 %, relative to dibenzocrown ether \\\\expert2\\NBO\\Macroheterocycles\\2014.7.1.23-27.pdf |
E 27 Effect of nanosized TiO2–SiO2 covalently modified by chiral molecules on the asymmetric Biginelli reaction [Electronic resource] / Yu. A. Titova, O. V. Fedorova, G. L. Rusinov, A. Yu. Vigorov, V. P. Krasnov, A. Murashkevich, V. N. Charushin // Catalysis Today. - 2015. - Vol. 241. - С. 270-274. - Bibliogr. : p. 274 (23 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): NANOOXIDE TiO2–SiO -- BIGINELLI REACTION -- ASYMMETRIC CATALYSIS Аннотация: The method for immobilization of chiral molecules (menthol and proline derivatives) on the mixed nanooxide TiO2–SiO2 surface has been developed. The synthesized nanocomposites were used as catalysts of the Biginelli reaction. It was shown that inactive chiral molecules, when covalently bonded to the nanooxide surface, acquired properties of a chiral inducer in the asymmetric Biginelli reaction. \\\\expert2\\nbo\\Catalysis Today\\2015, v.241, p.270.pdf |
Design of SiO2/aminopropylsilane-modifi ed magnetic Fe3O4 nanoparticles for doxorubicin immobilization / A. M. Demin, A. V. Vakhrushev, M. S. Valova [et al.] // Russian chemical bulletin. - 2021. - Vol. 70, № 5. - P987-994 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): MAGNETIC NANOPARTICLES -- N-PHOSPHONOMETHYLIMINODIACETIC ACID -- DOXORUBICIN -- SiO2 COATING -- SORPTION Аннотация: Surface modifi cation of magnetic nanoparticles (MNPs) with tetramethylorthosilicate and 3-aminopropyltrimethoxysilane was studied. The use of N-phosphonomethyliminodiacetic acid for the stabilization of the initial MNPs can signifi cantly increase the coating thickness and specifi c surface area of SiO2/APS-modifi ed (APS is 3-aminopropylsilane) MNPs. The possibility of sorption of antitumor drug doxorubicin (DOX) on the synthesized nanoparticles was studied. The degree of sorption of DOX increases with an increase in the specifi c surface area of the particles. |